Bolt pressing and fitting machine for full-automatic numerical control hub bearing unit

Abstract

The invention discloses a bolt pressing and fitting machine for a full-automatic numerical control hub bearing unit. The bolt pressing and fitting machine comprises a semi-closed support cabinet, wherein a work table is arranged at the middle-lower part of the support cabinet, at least one rotation shaft is arranged on the work table, one side of each rotation shaft is provided with a photoelectric switch, a hub bearing unit installing tooling is arranged at the upper part of each rotation shaft, and the lower part of each rotation shaft is connected with a servo motor; a support rod is further arranged on the work table to support a platform, at least one set of pressure cylinders are arranged on the platform, a pressure cylinder return air inlet pipe and a pressure head pressing air inlet pipe are arranged on each pressure cylinder, one side of each pressure cylinder is provided with a pressure head limit inferior limit proximity switch and a pressure head limit superior limit proximity switch, a pressure senor and a displacement sensor are further connected onto each pressure cylinder, the pressure senor is connected with a pressure head, and two sides of the pressure head are respectively provided with a guide column and a smooth guide cover; and the whole machine is controlled by a numerical control system, and is operated by an operation panel. The equipment tooling disclosed by the invention can be simply manufactured, and conveniently operated, and the bolt can be reliably pressed and fit.

Description

technical field [0001] The invention relates to a bolt pressing machine for a hub bearing unit, in particular to a fully automatic numerically controlled bolt pressing machine for a hub bearing unit. Background technique [0002] At present, the following two methods are usually used for the bolt press-fitting of the hub unit. The first method is to press-fit all the bolts at one time. This kind of press-fitting method cannot avoid the fact that individual bolts cannot be press-fitted according to the technical requirements due to the tolerance of the bolts themselves. In place, the quality of bolt pressing cannot be guaranteed. The second method: Although this method adopts the method of pressing single bolts one by one, but different car series, different models, different hub bearing units, the number of bolts of the hub bearing unit is different, and the pressure when the bolts are pressed, The displacement is also different; with this original press-fitting method, the...

AI Technical Summary

Problems solved by technology

[0002] At present, the following two methods are usually used for the bolt press-fitting of the hub unit. The first method is to press-fit all the bolts at one time. This kind of press-fitting method cannot avoid the fact that individual bolts cannot be press-fitted according to the technical requirements due to the tolerance of the bolts themselves. In place, the quality of bolt pressing cannot be guaranteed

The second method: Although this method adopts the method of pressing single bolts one by one, but different car series, different models, different hub bearing units, the number of bolts in the hub bearing unit is different, and the pressure when the bolts are pressed, The displacement is also different; with this original press-fitting method, the product cannot be rotated automatically, and the rotation of the product requires employees to manually rotate the tooling, the positioning accuracy cannot be guaranteed, the tooling is cumbersome to make, and the personal safety of the employees cannot be guaranteed; The pressure and displacement cannot be monitored online; the quality of the product after bolt pressing is uncontrollable

Images